""ET TROJAN Executioner Ransomware Reporting Infection via SMTP""

SID: 2024351

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_06_06, deployment Perimeter, malware_family Ransomware, malware_family Executioner, signature_severity Major, tag Ransomware, updated_at 2017_06_06, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact

Reference:

• md5

• eec4f84d12139add6d6ebf3b8c72fff7

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: [25,2525,587]

Flow: established,to_server

Contents:

• Value: "DECRYPT CODE|20 3a 20 20 20 20 20 20 20|" Depth: 21

Within:

PCRE:

Special Options:

• fast_pattern

source